In Hinduism, the nagas ("snake") are an ancient race of snake-humans that brought fertility to their venerators; they were especially popular in southern India. They are Varuna's servants. Nagas live in a type of palace called Patala[?], many of which are in Bhogavati[?], an underground city. For Malay sailors, nagas are a type of dragon with many heads; in Thailand and Java, the naga is a wealthy underworld deity. They are children of Kasyapa.
... and conversion of light into chemical energy, using chemical pathways with many important intermediates. Photosynthesis has two distinct stages, called the light reaction ...